Combination window construction



March 15, 1966 R. F. HALL COMBINATION WINDOW CONSTRUCTION 2 Sheets-Sheet 1 Filed July 22, 1963 /A/VENTOR3 RIC/4H RD F. HALL,

March 15, 1966 R. F. HALL 3,239,976

COMBINATION WINDOW CONSTRUCTION Filed July 22, 1965 2 Sheets-Sheet 2 2g 22 I4 f 34 3 64- 56 A III 42 Q H-"50 5 lNl/ENTOR R/cHAeo F. HALL,

HTTOQA/E Vs United States Patent Office 3,239,976 Patented Mar. 15, 1966 3,239,976 COMBINATION WHNDOW CONSTRUCTION Richard F. Hall, Leadwood, Mo. Filed .luly 22, 1963, Sex. No. 296,645 1 Claim. (Cl. 52202,)

The present invention relates generally to window construction, and more particularly to a novel combination prime sash and storm sash construction, which is insulated to prevent sweating caused by differentials in interior and exterior temperatures.

There has long existed the problem of sweating on prime or adjacent storm sash of combination conductive window constructions caused by the difference in temperature between the inside and outside air and the humidity, a situation doubly acute in these days of air conditioning in spite of the dehumidificaton by air conditioners. All metal combination constructions are used in greater and greater numbers today. Insofar as the applicant is aware, there have been no satisfactory solutions for the problem as applied to metal construction.

Therefore, an object of the present invention is to provide a novel combination prime and storm sash window construction which substantially eliminates the sweating problem heretofore encountered with such construction.

Therefore, an object of the present invention is to provide a novel combination prime and storm sash window construction which substantially eliminates the swating problem heretofore encountered with such constructions.

In brief, the present novel window construction includes a main supporting and mounting frame, a prime window sash supporting frame, a storm sash supporting frame, prime sash and storm sash removably mounted in said last two frames, respectively, the prime sash supporting frame and the storm sash supporting frame being insulated from and supported by the main supporting frame to substantially break up conduction between the three frames.

Hence, another object is to provide novel combination prime and storm sash window construction which is formed to substantially eliminate conduction of heat or cold between the interior and exterior of the structure in which the 'window construction is mounted.

Another object is to provide a novel combination prime and storm sash window construction which includes separate prime sash and storm sash units insulated from each other and from the main support by means of which said units are mounted.

Another object is to provide a novel combination prime and storm sash window construction adapted to substantially eliminate sweating, which finds wide adaptation in use and which can be readily mounted in openings of numerous types of construction.

Another object is to provide a novel combination prime and storm sash window construction which is formed to substantially eliminate sweating, which is simple in formation, yet effectively solves the long-existing sweating problem.

The foregoing and other objects and advantages are apparent from the following description taken with the accompanying drawings, in which:

FIGURE 1 is an inside elevational view of a combination prime and storm sash window construction incorporating the teachings of the present invention, looking at the storm sash supporting frame;

FIGURE 2 is an outside elevational view of the window construction of FIGURE 1, looking at the prime sash supporting frame;

FIGURE 3 is a fragmentary enlarged end elevational view;

FIGURE 4 is a fragmentary enlarged top plan view taken at the same corner as FIGURE 3;

FIGURE 5 is an enlarged, vertica1, transverse, crosssectional view taken on substantially the line 5-5 of FIGURE 1;

FIGURE 6 is an enlarged, vertical, transverse, crosssectional view taken on substantially the line 66 of FIGURE 1;

FIGURE 7 is an enlarged, horizontal, transverse, crosssectional view taken on substantially the line 7-7 of FIGURE 1; and

FIGURE 8 is an enlarged, horizontal, transverse, crosssectional view taken on substantially theline 8-8 of FIGURE 1.

Referring to the drawings more particularly by reference numerals, 10 indicates generally a combination prime and storm sash window construction formed in accordance with the teachings of the present invention. Broadly, the window construction 10 includes a main supporting and mounting frame 12, a prime sash supporting frame 14 mounted on the main frame 12 and insulated therefrom by an insulating strip 16, and a storm sash supporting frame 18 mounted on the mainframe 12 and insulated therefrom by insulating strips 20 and 22. The cross sections of the three frames 12, 1.4 and 18 are clearly shown in the drawings, it being understood that the particular cross section is continuous around the four sides of the respective frame. As illustrated, the present novel window construction is rectangular and of the vertical type, but it is to be understood that the present novel construction may take many desired forms.

The main frame 12 includes a mounting fin or flange 24 which may be secured to a stud or other structural member for securely mounting the present combination window construction 10 in the side of a house or other building. Parallel shorter fins 26 and 28 flank the mounting fin 24, the former being spaced further therefrom, the three fins 24, 26 and 28 extending outwardly from a transverse base 30. The fin 26 comprises the outside trim for the window. Two fins 32 and 34 extend inwardly from the transverse base 30, as shown. Continuous screwreceiving channels 36 are provided. The main supporting and mounting frame 12 is formed from segments of eX- truded aluminum, or other suitable material, being mitered and secured together by screws 38, and welding if preferred.

The prime sash supporting frame 14 is of stair-step cross section, as is clearly shown in the drawings, and includes a mounting flange 40 and prime sash-receiving channels 42 and 44 in which are removably and slida'bly mounted prime sash 46 and 48, respectively. The usual screw-receiving grooves 50 are provided. The prime sash supporting frame 14 is mounted on the fin 32 through the flange 4d and spaced rivets or screws 52, the insulation strip 16 being disposed between said fin 32 and flange 4-0 to substantially eliminate conduction therebetween.

The cross section and form of the storm sash supporting frame 18 are identical with those of the prime sash supporting frame 14, the perimeter of the former being greater than that of the latter, as is clear from FIGURES 5-8. The storm sash supporting frame 1 8 includes a flange 54 and channels 56 and 58 which receive storm sash 60 and 62. The storm sash supporting frame 1-8 is secured to the fin 28 by means of rivets or screws 64, the insulating strip 20 being disposed therebetween to substantially eliminate conduction therebetween. It will be noted that the insulating strip 22 is disposed between the fin 34 and one outer surface of the channel 58, thereby substantially eliminating conduction therebetween. This engagement between the fin 34 and the outer surface of the channel 58 through the insulating strips 2-2 pro- 3 vides additional rigidity of the window construction 10.

It is clear from the foregoing description taken with the drawings that with glass sashes in both the prime sash supporting frame 14 and the storm sash supporting frame 18, an air space 66 is provided therebetween. With the weather outside the window construction 10 at some temperature, as 15 F., and the temperature on the inside thereof at some comfortable temperature, as 73 F., maximum effect of the air space 66 will be utilized, since the frames 14 and 18 are insulated from the frame 12. In other words, there will be substantially no conduction of either cold or heat through the metal components of the several frames. Sweating is reduced to a minimum, and under most conditions of heat, cold and humidity, is eliminated. An experimental window construction employed through the latter part of last winter in rural Missouri was highly successful in achieving elimination of sweating. Standard storm sash and prime sash combination windows used under the same circumstances gave serious sweating difliculties.

It is apparent that there has been provided a combination prime and storm sash window construction which fulfills the objects and advantages sought therefor.

It is to be understood that the foregoing description and the accompanying drawing have been given by way of illustration and example. It is also to be understood that changes in form of the elements, rearrangement of parts, and substitution of equivalent elements, which will be obvious to those skilled in the art, are contemplated as within the scope of the present invention which is limited only by the claim which follows.

What is claimed is:

In combination, Window construction comprising a main supporting frame for mounting said window construction in an opening and for supporting prime sash and storm sash frames, said main supporting frame including a closed base portion, flanges extending inwardly and outwardly from said base portion, one outwardly extending flange being adapted for mounting said window construction in an opening, a prime sash frame mounted on one of said inwardly extending flanges, insulating means between said prime sash frame and said one inwardly extending flange breaking conduction contact therebetween, a storm sash frame mounted on a second of said outwardly extending flanges, insulating means between said storm sash frame and said second outwardly extending flange breaking conduction contact there- :between, said storm sash frame engaging a second of said inwardly directed flanges for greater rigidity, and insulating means between said storm sash frame and said second flange breaking conduction therebetween.

References Cited by the Examiner UNITED STATES PATENTS 2,640,232 6/1953 Price 2055 2,703,158 3/1955 Hauck 189-75 2,983,001 5/1961 G-uldager 20--40 3,023,465 3/1962 Sconzo 2055 3,055,468 9/1962 Horejs et a1. 189- 75 3,080,620 3/ 196 Mendelsohn 2055 3,081,852 3/1963 Mendelsohn 2055 CHARLES E. OCONNELL, Primary Examiner. 

